/* The bulk of this code derives from https://github.com/dmoscrop/fold-case
But in addition to case-folding, we also normalize whitespace.

fold-case is Copyright Mathias Bynens <https://mathiasbynens.be/>

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

/*eslint-disable  key-spacing, comma-spacing */

const regex = /[ \t\r\n]+|[A-Z\xB5\xC0-\xD6\xD8-\xDF\u0100\u0102\u0104\u0106\u0108\u010A\u010C\u010E\u0110\u0112\u0114\u0116\u0118\u011A\u011C\u011E\u0120\u0122\u0124\u0126\u0128\u012A\u012C\u012E\u0130\u0132\u0134\u0136\u0139\u013B\u013D\u013F\u0141\u0143\u0145\u0147\u0149\u014A\u014C\u014E\u0150\u0152\u0154\u0156\u0158\u015A\u015C\u015E\u0160\u0162\u0164\u0166\u0168\u016A\u016C\u016E\u0170\u0172\u0174\u0176\u0178\u0179\u017B\u017D\u017F\u0181\u0182\u0184\u0186\u0187\u0189-\u018B\u018E-\u0191\u0193\u0194\u0196-\u0198\u019C\u019D\u019F\u01A0\u01A2\u01A4\u01A6\u01A7\u01A9\u01AC\u01AE\u01AF\u01B1-\u01B3\u01B5\u01B7\u01B8\u01BC\u01C4\u01C5\u01C7\u01C8\u01CA\u01CB\u01CD\u01CF\u01D1\u01D3\u01D5\u01D7\u01D9\u01DB\u01DE\u01E0\u01E2\u01E4\u01E6\u01E8\u01EA\u01EC\u01EE\u01F0-\u01F2\u01F4\u01F6-\u01F8\u01FA\u01FC\u01FE\u0200\u0202\u0204\u0206\u0208\u020A\u020C\u020E\u0210\u0212\u0214\u0216\u0218\u021A\u021C\u021E\u0220\u0222\u0224\u0226\u0228\u022A\u022C\u022E\u0230\u0232\u023A\u023B\u023D\u023E\u0241\u0243-\u0246\u0248\u024A\u024C\u024E\u0345\u0370\u0372\u0376\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03AB\u03B0\u03C2\u03CF-\u03D1\u03D5\u03D6\u03D8\u03DA\u03DC\u03DE\u03E0\u03E2\u03E4\u03E6\u03E8\u03EA\u03EC\u03EE\u03F0\u03F1\u03F4\u03F5\u03F7\u03F9\u03FA\u03FD-\u042F\u0460\u0462\u0464\u0466\u0468\u046A\u046C\u046E\u0470\u0472\u0474\u0476\u0478\u047A\u047C\u047E\u0480\u048A\u048C\u048E\u0490\u0492\u0494\u0496\u0498\u049A\u049C\u049E\u04A0\u04A2\u04A4\u04A6\u04A8\u04AA\u04AC\u04AE\u04B0\u04B2\u04B4\u04B6\u04B8\u04BA\u04BC\u04BE\u04C0\u04C1\u04C3\u04C5\u04C7\u04C9\u04CB\u04CD\u04D0\u04D2\u04D4\u04D6\u04D8\u04DA\u04DC\u04DE\u04E0\u04E2\u04E4\u04E6\u04E8\u04EA\u04EC\u04EE\u04F0\u04F2\u04F4\u04F6\u04F8\u04FA\u04FC\u04FE\u0500\u0502\u0504\u0506\u0508\u050A\u050C\u050E\u0510\u0512\u0514\u0516\u0518\u051A\u051C\u051E\u0520\u0522\u0524\u0526\u0528\u052A\u052C\u052E\u0531-\u0556\u0587\u10A0-\u10C5\u10C7\u10CD\u1E00\u1E02\u1E04\u1E06\u1E08\u1E0A\u1E0C\u1E0E\u1E10\u1E12\u1E14\u1E16\u1E18\u1E1A\u1E1C\u1E1E\u1E20\u1E22\u1E24\u1E26\u1E28\u1E2A\u1E2C\u1E2E\u1E30\u1E32\u1E34\u1E36\u1E38\u1E3A\u1E3C\u1E3E\u1E40\u1E42\u1E44\u1E46\u1E48\u1E4A\u1E4C\u1E4E\u1E50\u1E52\u1E54\u1E56\u1E58\u1E5A\u1E5C\u1E5E\u1E60\u1E62\u1E64\u1E66\u1E68\u1E6A\u1E6C\u1E6E\u1E70\u1E72\u1E74\u1E76\u1E78\u1E7A\u1E7C\u1E7E\u1E80\u1E82\u1E84\u1E86\u1E88\u1E8A\u1E8C\u1E8E\u1E90\u1E92\u1E94\u1E96-\u1E9B\u1E9E\u1EA0\u1EA2\u1EA4\u1EA6\u1EA8\u1EAA\u1EAC\u1EAE\u1EB0\u1EB2\u1EB4\u1EB6\u1EB8\u1EBA\u1EBC\u1EBE\u1EC0\u1EC2\u1EC4\u1EC6\u1EC8\u1ECA\u1ECC\u1ECE\u1ED0\u1ED2\u1ED4\u1ED6\u1ED8\u1EDA\u1EDC\u1EDE\u1EE0\u1EE2\u1EE4\u1EE6\u1EE8\u1EEA\u1EEC\u1EEE\u1EF0\u1EF2\u1EF4\u1EF6\u1EF8\u1EFA\u1EFC\u1EFE\u1F08-\u1F0F\u1F18-\u1F1D\u1F28-\u1F2F\u1F38-\u1F3F\u1F48-\u1F4D\u1F50\u1F52\u1F54\u1F56\u1F59\u1F5B\u1F5D\u1F5F\u1F68-\u1F6F\u1F80-\u1FAF\u1FB2-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD2\u1FD3\u1FD6-\u1FDB\u1FE2-\u1FE4\u1FE6-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2126\u212A\u212B\u2132\u2160-\u216F\u2183\u24B6-\u24CF\u2C00-\u2C2E\u2C60\u2C62-\u2C64\u2C67\u2C69\u2C6B\u2C6D-\u2C70\u2C72\u2C75\u2C7E-\u2C80\u2C82\u2C84\u2C86\u2C88\u2C8A\u2C8C\u2C8E\u2C90\u2C92\u2C94\u2C96\u2C98\u2C9A\u2C9C\u2C9E\u2CA0\u2CA2\u2CA4\u2CA6\u2CA8\u2CAA\u2CAC\u2CAE\u2CB0\u2CB2\u2CB4\u2CB6\u2CB8\u2CBA\u2CBC\u2CBE\u2CC0\u2CC2\u2CC4\u2CC6\u2CC8\u2CCA\u2CCC\u2CCE\u2CD0\u2CD2\u2CD4\u2CD6\u2CD8\u2CDA\u2CDC\u2CDE\u2CE0\u2CE2\u2CEB\u2CED\u2CF2\uA640\uA642\uA644\uA646\uA648\uA64A\uA64C\uA64E\uA650\uA652\uA654\uA656\uA658\uA65A\uA65C\uA65E\uA660\uA662\uA664\uA666\uA668\uA66A\uA66C\uA680\uA682\uA684\uA686\uA688\uA68A\uA68C\uA68E\uA690\uA692\uA694\uA696\uA698\uA69A\uA722\uA724\uA726\uA728\uA72A\uA72C\uA72E\uA732\uA734\uA736\uA738\uA73A\uA73C\uA73E\uA740\uA742\uA744\uA746\uA748\uA74A\uA74C\uA74E\uA750\uA752\uA754\uA756\uA758\uA75A\uA75C\uA75E\uA760\uA762\uA764\uA766\uA768\uA76A\uA76C\uA76E\uA779\uA77B\uA77D\uA77E\uA780\uA782\uA784\uA786\uA78B\uA78D\uA790\uA792\uA796\uA798\uA79A\uA79C\uA79E\uA7A0\uA7A2\uA7A4\uA7A6\uA7A8\uA7AA-\uA7AD\uA7B0\uA7B1\uFB00-\uFB06\uFB13-\uFB17\uFF21-\uFF3A]|\uD801[\uDC00-\uDC27]|\uD806[\uDCA0-\uDCBF]/g;

const map : {
    [key : string] : string|undefined
} = {'A':'a','B':'b','C':'c','D':'d','E':'e','F':'f','G':'g','H':'h','I':'i','J':'j','K':'k','L':'l','M':'m','N':'n','O':'o','P':'p','Q':'q','R':'r','S':'s','T':'t','U':'u','V':'v','W':'w','X':'x','Y':'y','Z':'z','\xB5':'\u03BC','\xC0':'\xE0','\xC1':'\xE1','\xC2':'\xE2','\xC3':'\xE3','\xC4':'\xE4','\xC5':'\xE5','\xC6':'\xE6','\xC7':'\xE7','\xC8':'\xE8','\xC9':'\xE9','\xCA':'\xEA','\xCB':'\xEB','\xCC':'\xEC','\xCD':'\xED','\xCE':'\xEE','\xCF':'\xEF','\xD0':'\xF0','\xD1':'\xF1','\xD2':'\xF2','\xD3':'\xF3','\xD4':'\xF4','\xD5':'\xF5','\xD6':'\xF6','\xD8':'\xF8','\xD9':'\xF9','\xDA':'\xFA','\xDB':'\xFB','\xDC':'\xFC','\xDD':'\xFD','\xDE':'\xFE','\u0100':'\u0101','\u0102':'\u0103','\u0104':'\u0105','\u0106':'\u0107','\u0108':'\u0109','\u010A':'\u010B','\u010C':'\u010D','\u010E':'\u010F','\u0110':'\u0111','\u0112':'\u0113','\u0114':'\u0115','\u0116':'\u0117','\u0118':'\u0119','\u011A':'\u011B','\u011C':'\u011D','\u011E':'\u011F','\u0120':'\u0121','\u0122':'\u0123','\u0124':'\u0125','\u0126':'\u0127','\u0128':'\u0129','\u012A':'\u012B','\u012C':'\u012D','\u012E':'\u012F','\u0132':'\u0133','\u0134':'\u0135','\u0136':'\u0137','\u0139':'\u013A','\u013B':'\u013C','\u013D':'\u013E','\u013F':'\u0140','\u0141':'\u0142','\u0143':'\u0144','\u0145':'\u0146','\u0147':'\u0148','\u014A':'\u014B','\u014C':'\u014D','\u014E':'\u014F','\u0150':'\u0151','\u0152':'\u0153','\u0154':'\u0155','\u0156':'\u0157','\u0158':'\u0159','\u015A':'\u015B','\u015C':'\u015D','\u015E':'\u015F','\u0160':'\u0161','\u0162':'\u0163','\u0164':'\u0165','\u0166':'\u0167','\u0168':'\u0169','\u016A':'\u016B','\u016C':'\u016D','\u016E':'\u016F','\u0170':'\u0171','\u0172':'\u0173','\u0174':'\u0175','\u0176':'\u0177','\u0178':'\xFF','\u0179':'\u017A','\u017B':'\u017C','\u017D':'\u017E','\u017F':'s','\u0181':'\u0253','\u0182':'\u0183','\u0184':'\u0185','\u0186':'\u0254','\u0187':'\u0188','\u0189':'\u0256','\u018A':'\u0257','\u018B':'\u018C','\u018E':'\u01DD','\u018F':'\u0259','\u0190':'\u025B','\u0191':'\u0192','\u0193':'\u0260','\u0194':'\u0263','\u0196':'\u0269','\u0197':'\u0268','\u0198':'\u0199','\u019C':'\u026F','\u019D':'\u0272','\u019F':'\u0275','\u01A0':'\u01A1','\u01A2':'\u01A3','\u01A4':'\u01A5','\u01A6':'\u0280','\u01A7':'\u01A8','\u01A9':'\u0283','\u01AC':'\u01AD','\u01AE':'\u0288','\u01AF':'\u01B0','\u01B1':'\u028A','\u01B2':'\u028B','\u01B3':'\u01B4','\u01B5':'\u01B6','\u01B7':'\u0292','\u01B8':'\u01B9','\u01BC':'\u01BD','\u01C4':'\u01C6','\u01C5':'\u01C6','\u01C7':'\u01C9','\u01C8':'\u01C9','\u01CA':'\u01CC','\u01CB':'\u01CC','\u01CD':'\u01CE','\u01CF':'\u01D0','\u01D1':'\u01D2','\u01D3':'\u01D4','\u01D5':'\u01D6','\u01D7':'\u01D8','\u01D9':'\u01DA','\u01DB':'\u01DC','\u01DE':'\u01DF','\u01E0':'\u01E1','\u01E2':'\u01E3','\u01E4':'\u01E5','\u01E6':'\u01E7','\u01E8':'\u01E9','\u01EA':'\u01EB','\u01EC':'\u01ED','\u01EE':'\u01EF','\u01F1':'\u01F3','\u01F2':'\u01F3','\u01F4':'\u01F5','\u01F6':'\u0195','\u01F7':'\u01BF','\u01F8':'\u01F9','\u01FA':'\u01FB','\u01FC':'\u01FD','\u01FE':'\u01FF','\u0200':'\u0201','\u0202':'\u0203','\u0204':'\u0205','\u0206':'\u0207','\u0208':'\u0209','\u020A':'\u020B','\u020C':'\u020D','\u020E':'\u020F','\u0210':'\u0211','\u0212':'\u0213','\u0214':'\u0215','\u0216':'\u0217','\u0218':'\u0219','\u021A':'\u021B','\u021C':'\u021D','\u021E':'\u021F','\u0220':'\u019E','\u0222':'\u0223','\u0224':'\u0225','\u0226':'\u0227','\u0228':'\u0229','\u022A':'\u022B','\u022C':'\u022D','\u022E':'\u022F','\u0230':'\u0231','\u0232':'\u0233','\u023A':'\u2C65','\u023B':'\u023C','\u023D':'\u019A','\u023E':'\u2C66','\u0241':'\u0242','\u0243':'\u0180','\u0244':'\u0289','\u0245':'\u028C','\u0246':'\u0247','\u0248':'\u0249','\u024A':'\u024B','\u024C':'\u024D','\u024E':'\u024F','\u0345':'\u03B9','\u0370':'\u0371','\u0372':'\u0373','\u0376':'\u0377','\u037F':'\u03F3','\u0386':'\u03AC','\u0388':'\u03AD','\u0389':'\u03AE','\u038A':'\u03AF','\u038C':'\u03CC','\u038E':'\u03CD','\u038F':'\u03CE','\u0391':'\u03B1','\u0392':'\u03B2','\u0393':'\u03B3','\u0394':'\u03B4','\u0395':'\u03B5','\u0396':'\u03B6','\u0397':'\u03B7','\u0398':'\u03B8','\u0399':'\u03B9','\u039A':'\u03BA','\u039B':'\u03BB','\u039C':'\u03BC','\u039D':'\u03BD','\u039E':'\u03BE','\u039F':'\u03BF','\u03A0':'\u03C0','\u03A1':'\u03C1','\u03A3':'\u03C3','\u03A4':'\u03C4','\u03A5':'\u03C5','\u03A6':'\u03C6','\u03A7':'\u03C7','\u03A8':'\u03C8','\u03A9':'\u03C9','\u03AA':'\u03CA','\u03AB':'\u03CB','\u03C2':'\u03C3','\u03CF':'\u03D7','\u03D0':'\u03B2','\u03D1':'\u03B8','\u03D5':'\u03C6','\u03D6':'\u03C0','\u03D8':'\u03D9','\u03DA':'\u03DB','\u03DC':'\u03DD','\u03DE':'\u03DF','\u03E0':'\u03E1','\u03E2':'\u03E3','\u03E4':'\u03E5','\u03E6':'\u03E7','\u03E8':'\u03E9','\u03EA':'\u03EB','\u03EC':'\u03ED','\u03EE':'\u03EF','\u03F0':'\u03BA','\u03F1':'\u03C1','\u03F4':'\u03B8','\u03F5':'\u03B5','\u03F7':'\u03F8','\u03F9':'\u03F2','\u03FA':'\u03FB','\u03FD':'\u037B','\u03FE':'\u037C','\u03FF':'\u037D','\u0400':'\u0450','\u0401':'\u0451','\u0402':'\u0452','\u0403':'\u0453','\u0404':'\u0454','\u0405':'\u0455','\u040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C2':'\u2CC3','\u2CC4':'\u2CC5','\u2CC6':'\u2CC7','\u2CC8':'\u2CC9','\u2CCA':'\u2CCB','\u2CCC':'\u2CCD','\u2CCE':'\u2CCF','\u2CD0':'\u2CD1','\u2CD2':'\u2CD3','\u2CD4':'\u2CD5','\u2CD6':'\u2CD7','\u2CD8':'\u2CD9','\u2CDA':'\u2CDB','\u2CDC':'\u2CDD','\u2CDE':'\u2CDF','\u2CE0':'\u2CE1','\u2CE2':'\u2CE3','\u2CEB':'\u2CEC','\u2CED':'\u2CEE','\u2CF2':'\u2CF3','\uA640':'\uA641','\uA642':'\uA643','\uA644':'\uA645','\uA646':'\uA647','\uA648':'\uA649','\uA64A':'\uA64B','\uA64C':'\uA64D','\uA64E':'\uA64F','\uA650':'\uA651','\uA652':'\uA653','\uA654':'\uA655','\uA656':'\uA657','\uA658':'\uA659','\uA65A':'\uA65B','\uA65C':'\uA65D','\uA65E':'\uA65F','\uA660':'\uA661','\uA662':'\uA663','\uA664':'\uA665','\uA666':'\uA667','\uA668':'\uA669','\uA66A':'\uA66B','\uA66C':'\uA66D','\uA680':'\uA681','\uA682':'\uA683','\uA684':'\uA685','\uA686':'\uA687','\uA688':'\uA689','\uA68A':'\uA68B','\uA68C':'\uA68D','\uA68E':'\uA68F','\uA690':'\uA691','\uA692':'\uA693','\uA694':'\uA695','\uA696':'\uA697','\uA698':'\uA699','\uA69A':'\uA69B','\uA722':'\uA723','\uA724':'\uA725','\uA726':'\uA727','\uA728':'\uA729','\uA72A':'\uA72B','\uA72C':'\uA72D','\uA72E':'\uA72F','\uA732':'\uA733','\uA734':'\uA735','\uA736':'\uA737','\uA738':'\uA739','\uA73A':'\uA73B','\uA73C':'\uA73D','\uA73E':'\uA73F','\uA740':'\uA741','\uA742':'\uA743','\uA744':'\uA745','\uA746':'\uA747','\uA748':'\uA749','\uA74A':'\uA74B','\uA74C':'\uA74D','\uA74E':'\uA74F','\uA750':'\uA751','\uA752':'\uA753','\uA754':'\uA755','\uA756':'\uA757','\uA758':'\uA759','\uA75A':'\uA75B','\uA75C':'\uA75D','\uA75E':'\uA75F','\uA760':'\uA761','\uA762':'\uA763','\uA764':'\uA765','\uA766':'\uA767','\uA768':'\uA769','\uA76A':'\uA76B','\uA76C':'\uA76D','\uA76E':'\uA76F','\uA779':'\uA77A','\uA77B':'\uA77C','\uA77D':'\u1D79','\uA77E':'\uA77F','\uA780':'\uA781','\uA782':'\uA783','\uA784':'\uA785','\uA786':'\uA787','\uA78B':'\uA78C','\uA78D':'\u0265','\uA790':'\uA791','\uA792':'\uA793','\uA796':'\uA797','\uA798':'\uA799','\uA79A':'\uA79B','\uA79C':'\uA79D','\uA79E':'\uA79F','\uA7A0':'\uA7A1','\uA7A2':'\uA7A3','\uA7A4':'\uA7A5','\uA7A6':'\uA7A7','\uA7A8':'\uA7A9','\uA7AA':'\u0266','\uA7AB':'\u025C','\uA7AC':'\u0261','\uA7AD':'\u026C','\uA7B0':'\u029E','\uA7B1':'\u0287','\uFF21':'\uFF41','\uFF22':'\uFF42','\uFF23':'\uFF43','\uFF24':'\uFF44','\uFF25':'\uFF45','\uFF26':'\uFF46','\uFF27':'\uFF47','\uFF28':'\uFF48','\uFF29':'\uFF49','\uFF2A':'\uFF4A','\uFF2B':'\uFF4B','\uFF2C':'\uFF4C','\uFF2D':'\uFF4D','\uFF2E':'\uFF4E','\uFF2F':'\uFF4F','\uFF30':'\uFF50','\uFF31':'\uFF51','\uFF32':'\uFF52','\uFF33':'\uFF53','\uFF34':'\uFF54','\uFF35':'\uFF55','\uFF36':'\uFF56','\uFF37':'\uFF57','\uFF38':'\uFF58','\uFF39':'\uFF59','\uFF3A':'\uFF5A','\uD801\uDC00':'\uD801\uDC28','\uD801\uDC01':'\uD801\uDC29','\uD801\uDC02':'\uD801\uDC2A','\uD801\uDC03':'\uD801\uDC2B','\uD801\uDC04':'\uD801\uDC2C','\uD801\uDC05':'\uD801\uDC2D','\uD801\uDC06':'\uD801\uDC2E','\uD801\uDC07':'\uD801\uDC2F','\uD801\uDC08':'\uD801\uDC30','\uD801\uDC09':'\uD801\uDC31','\uD801\uDC0A':'\uD801\uDC32','\uD801\uDC0B':'\uD801\uDC33','\uD801\uDC0C':'\uD801\uDC34','\uD801\uDC0D':'\uD801\uDC35','\uD801\uDC0E':'\uD801\uDC36','\uD801\uDC0F':'\uD801\uDC37','\uD801\uDC10':'\uD801\uDC38','\uD801\uDC11':'\uD801\uDC39','\uD801\uDC12':'\uD801\uDC3A','\uD801\uDC13':'\uD801\uDC3B','\uD801\uDC14':'\uD801\uDC3C','\uD801\uDC15':'\uD801\uDC3D','\uD801\uDC16':'\uD801\uDC3E','\uD801\uDC17':'\uD801\uDC3F','\uD801\uDC18':'\uD801\uDC40','\uD801\uDC19':'\uD801\uDC41','\uD801\uDC1A':'\uD801\uDC42','\uD801\uDC1B':'\uD801\uDC43','\uD801\uDC1C':'\uD801\uDC44','\uD801\uDC1D':'\uD801\uDC45','\uD801\uDC1E':'\uD801\uDC46','\uD801\uDC1F':'\uD801\uDC47','\uD801\uDC20':'\uD801\uDC48','\uD801\uDC21':'\uD801\uDC49','\uD801\uDC22':'\uD801\uDC4A','\uD801\uDC23':'\uD801\uDC4B','\uD801\uDC24':'\uD801\uDC4C','\uD801\uDC25':'\uD801\uDC4D','\uD801\uDC26':'\uD801\uDC4E','\uD801\uDC27':'\uD801\uDC4F','\uD806\uDCA0':'\uD806\uDCC0','\uD806\uDCA1':'\uD806\uDCC1','\uD806\uDCA2':'\uD806\uDCC2','\uD806\uDCA3':'\uD806\uDCC3','\uD806\uDCA4':'\uD806\uDCC4','\uD806\uDCA5':'\uD806\uDCC5','\uD806\uDCA6':'\uD806\uDCC6','\uD806\uDCA7':'\uD806\uDCC7','\uD806\uDCA8':'\uD806\uDCC8','\uD806\uDCA9':'\uD806\uDCC9','\uD806\uDCAA':'\uD806\uDCCA','\uD806\uDCAB':'\uD806\uDCCB','\uD806\uDCAC':'\uD806\uDCCC','\uD806\uDCAD':'\uD806\uDCCD','\uD806\uDCAE':'\uD806\uDCCE','\uD806\uDCAF':'\uD806\uDCCF','\uD806\uDCB0':'\uD806\uDCD0','\uD806\uDCB1':'\uD806\uDCD1','\uD806\uDCB2':'\uD806\uDCD2','\uD806\uDCB3':'\uD806\uDCD3','\uD806\uDCB4':'\uD806\uDCD4','\uD806\uDCB5':'\uD806\uDCD5','\uD806\uDCB6':'\uD806\uDCD6','\uD806\uDCB7':'\uD806\uDCD7','\uD806\uDCB8':'\uD806\uDCD8','\uD806\uDCB9':'\uD806\uDCD9','\uD806\uDCBA':'\uD806\uDCDA','\uD806\uDCBB':'\uD806\uDCDB','\uD806\uDCBC':'\uD806\uDCDC','\uD806\uDCBD':'\uD806\uDCDD','\uD806\uDCBE':'\uD806\uDCDE','\uD806\uDCBF':'\uD806\uDCDF','\xDF':'ss','\u0130':'i\u0307','\u0149':'\u02BCn','\u01F0':'j\u030C','\u0390':'\u03B9\u0308\u0301','\u03B0':'\u03C5\u0308\u0301','\u0587':'\u0565\u0582','\u1E96':'h\u0331','\u1E97':'t\u0308','\u1E98':'w\u030A','\u1E99':'y\u030A','\u1E9A':'a\u02BE','\u1E9E':'ss','\u1F50':'\u03C5\u0313','\u1F52':'\u03C5\u0313\u0300','\u1F54':'\u03C5\u0313\u0301','\u1F56':'\u03C5\u0313\u0342','\u1F80':'\u1F00\u03B9','\u1F81':'\u1F01\u03B9','\u1F82':'\u1F02\u03B9','\u1F83':'\u1F03\u03B9','\u1F84':'\u1F04\u03B9','\u1F85':'\u1F05\u03B9','\u1F86':'\u1F06\u03B9','\u1F87':'\u1F07\u03B9','\u1F88':'\u1F00\u03B9','\u1F89':'\u1F01\u03B9','\u1F8A':'\u1F02\u03B9','\u1F8B':'\u1F03\u03B9','\u1F8C':'\u1F04\u03B9','\u1F8D':'\u1F05\u03B9','\u1F8E':'\u1F06\u03B9','\u1F8F':'\u1F07\u03B9','\u1F90':'\u1F20\u03B9','\u1F91':'\u1F21\u03B9','\u1F92':'\u1F22\u03B9','\u1F93':'\u1F23\u03B9','\u1F94':'\u1F24\u03B9','\u1F95':'\u1F25\u03B9','\u1F96':'\u1F26\u03B9','\u1F97':'\u1F27\u03B9','\u1F98':'\u1F20\u03B9','\u1F99':'\u1F21\u03B9','\u1F9A':'\u1F22\u03B9','\u1F9B':'\u1F23\u03B9','\u1F9C':'\u1F24\u03B9','\u1F9D':'\u1F25\u03B9','\u1F9E':'\u1F26\u03B9','\u1F9F':'\u1F27\u03B9','\u1FA0':'\u1F60\u03B9','\u1FA1':'\u1F61\u03B9','\u1FA2':'\u1F62\u03B9','\u1FA3':'\u1F63\u03B9','\u1FA4':'\u1F64\u03B9','\u1FA5':'\u1F65\u03B9','\u1FA6':'\u1F66\u03B9','\u1FA7':'\u1F67\u03B9','\u1FA8':'\u1F60\u03B9','\u1FA9':'\u1F61\u03B9','\u1FAA':'\u1F62\u03B9','\u1FAB':'\u1F63\u03B9','\u1FAC':'\u1F64\u03B9','\u1FAD':'\u1F65\u03B9','\u1FAE':'\u1F66\u03B9','\u1FAF':'\u1F67\u03B9','\u1FB2':'\u1F70\u03B9','\u1FB3':'\u03B1\u03B9','\u1FB4':'\u03AC\u03B9','\u1FB6':'\u03B1\u0342','\u1FB7':'\u03B1\u0342\u03B9','\u1FBC':'\u03B1\u03B9','\u1FC2':'\u1F74\u03B9','\u1FC3':'\u03B7\u03B9','\u1FC4':'\u03AE\u03B9','\u1FC6':'\u03B7\u0342','\u1FC7':'\u03B7\u0342\u03B9','\u1FCC':'\u03B7\u03B9','\u1FD2':'\u03B9\u0308\u0300','\u1FD3':'\u03B9\u0308\u0301','\u1FD6':'\u03B9\u0342','\u1FD7':'\u03B9\u0308\u0342','\u1FE2':'\u03C5\u0308\u0300','\u1FE3':'\u03C5\u0308\u0301','\u1FE4':'\u03C1\u0313','\u1FE6':'\u03C5\u0342','\u1FE7':'\u03C5\u0308\u0342','\u1FF2':'\u1F7C\u03B9','\u1FF3':'\u03C9\u03B9','\u1FF4':'\u03CE\u03B9','\u1FF6':'\u03C9\u0342','\u1FF7':'\u03C9\u0342\u03B9','\u1FFC':'\u03C9\u03B9','\uFB00':'ff','\uFB01':'fi','\uFB02':'fl','\uFB03':'ffi','\uFB04':'ffl','\uFB05':'st','\uFB06':'st','\uFB13':'\u0574\u0576','\uFB14':'\u0574\u0565','\uFB15':'\u0574\u056B','\uFB16':'\u057E\u0576','\uFB17':'\u0574\u056D'};

// Normalize reference label: collapse internal whitespace
// to single space, remove leading/trailing whitespace, case fold.
export function normalizeReference (string : string) {
    return string.slice(1, string.length - 1).trim().replace(regex, function($0) {
        // Note: there is no need to check `hasOwnProperty($0)` here.
        // If character not found in lookup table, it must be whitespace.
        return map[$0] || ' ';
    });
};
